KAL Calcium Citrate with D 1000 IU Tablets - 1000 mg, 90 Tablets

What Makes Calcium Citrate Different?

Calcium supplements are popular, but not all forms are created equal. Calcium citrate is prized for its superior bioavailability, especially for those with reduced stomach acid or who take acid-reducing medications. Unlike calcium carbonate, citrate does not require food for absorption, making it a flexible option. KAL’s formula use calcium citrate reacted with citric acid to enhance how your body utilises the mineral. plus 1,000 IU of vitamin D3 ensures that calcium is effectively directed to bones and teeth.

Why Your Body Needs Calcium

Calcium is the most abundant mineral in the body, critical for building and maintaining strong bones and teeth. It also supports muscle contraction, nerve transmission, and blood vessel function. Since the body cannot produce calcium itself, it must come from diet or supplementation. The recommended daily intake for adults in the UK is around 700–1,200 mg, yet many people don’t meet this target. Pairing calcium with vitamin D is essential because D boosts absorption in the gut, ensuring the mineral reaches where it’s needed most.

Who Should Supplement?

Certain groups benefit particularly from calcium supplementation. Postmenopausal women face accelerated bone loss due to falling oestrogen levels, so extra calcium help, Older adults over 70 often have reduced absorption and lower dietary intake. Those with lactose intolerance or dairy allergies may struggle to get enough. People on vegan or low-calorie diets, or with absorption conditions like Crohn’s disease, may need supplementation. If you’re uncertain about your intake, ask a health care professional for advice.

Key Differences: Calcium Carbonate vs. Calcium Citrate

Calcium carbonate contains around 40% elemental calcium but requires stomach acid, so it’s best taken with food. Calcium citrate provides about 21% elemental calcium but is absorbed equally well with or without food. That makes citrate the preferred choice for individuals with low stomach acid or those on acid-reducing drugs. The product here use citrate, which is also gentler on the stomach and less likely to cause constipation than carbonate.

How to Choose the Right Dosage

Focus on elemental calcium content. KAL provides 1,000 mg per serving plus 1,000 IU of vitamin D3. For best absorption, take no more than 500–600 mg at a time—split into morning and evening doses if needed. Vitamin D3 (cholecalciferol) is the same form produced by sunlight, making it excellent for supporting calcium uptake. The ActivTab technology ensures each tablet disintegrates within 30 minutes per pharmacopoeial standards, so nutrients are released promptly.

What Sets This Supplement Apart?

KAL’s formula combines three key benefits: a highly absorbable calcium citrate form, added vitamin D3, and ActivTab disintegration guarantee. Many supplements use carbonate, but citrate offers better bioavailability for sensitive digestive systems. The 1,000 IU of vitamin D3 not only boosts calcium absorption but also supports immune function and overall wellbeing. KAL is a trusted brand with a longstanding reputation for quality.

Potential Side Effects and Safety

Calcium supplements are safe when taken as directed, but some may experience gas, bloating, or constipation. Start with a lower dose and increase gradually, or take with food. Excessive calcium (over 2,000–2,500 mg daily from all sources) may raise kidney stone risk, especially for susceptible individuals. Calcium can interfere with thyroid hormones and antibiotics. Consult your doctor before starting, particularly if you have a history of kidney stones, hypercalcaemia, or take prescription medicines.

Frequently Asked Questions

How many tablets should I take?
The serving size is on the label. For a 1,000 mg dose, you may take multiple tablets. Always follow the instructions.

Can I take this on an empty stomach?
Yes, because it’s calcium citrate, it doesn’t need food for absorption.

Is this product vegan?
KAL Calcium Citrate with D is free from common allergens, but check the label for specific certifications.

What is the expiry date?
Batch dates are printed on the bottle. Store in a cool, dry place.

This product is not intended to diagnose, treat, or prevent any disease.